#define _CRT_SECURE_NO_WARNINGS

//#include<stdio.h>
//#include<string.h>
//int main()
//{
//	/*unsigned int a = 3;
//	unsigned int b = 6;
//	printf("%ud", a - b);*/
//	/*const char arr1[] = "qwer";
//	char arr2[] = "abcdefg";
//	strcpy(arr1, arr2);*/
//	char arr1[] = "ab\0";
//	char arr2[] = "ab ";
//	int ret = strcmp(arr1, arr2);
//	printf("%d\n", ret);
//
//	return 0;
//}


